Synthesis, spectroscopic and thermal studies of the copper(II) aspartame chloride complex

S. Çakir, E. Coşkun, P. Naumov, E. Biçer, I. Bulut, H. Içbudak, O. Çakir

Research output: Contribution to journalArticlepeer-review


Aspartame adduct of copper(II) chloride Cu(AsP)2Cl2·2H2O (Asp = aspartame) is synthesized and characterized by elemental analysis, FT IR, UV/vis, ESR spectroscopies, TG, DTG, DTA measurements and molecular mechanics calculations. Aqueous solution of the green solid absorbs strongly at 774 and 367 nm. According to the FT IR spectra, the aspartame moiety coordinates to the copper(II) ion via its carboxylate ends, whereas the ammonium terminal groups give rise to hydrogen bonding network with the water, the chloride ions or neighboring carboxylate groups. The results suggest tetragonally distorted octahedral environment of the copper ions.

Original languageEnglish (US)
Pages (from-to)101-107
Number of pages7
JournalJournal of Molecular Structure
Issue number1
StatePublished - May 8 2002


  • Aspartame
  • Copper
  • ESR
  • FT IR
  • Thermal analysis
  • UV/vis

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Inorganic Chemistry


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